EP4333611B1 - Dispositif de mélange pourvu d'une vis mélangeuse divisée et des sections de spires pouvant être entraînées indépendamment les unes des autres - Google Patents

Dispositif de mélange pourvu d'une vis mélangeuse divisée et des sections de spires pouvant être entraînées indépendamment les unes des autres

Info

Publication number
EP4333611B1
EP4333611B1 EP22726032.0A EP22726032A EP4333611B1 EP 4333611 B1 EP4333611 B1 EP 4333611B1 EP 22726032 A EP22726032 A EP 22726032A EP 4333611 B1 EP4333611 B1 EP 4333611B1
Authority
EP
European Patent Office
Prior art keywords
screw winding
mixing
screw
section
winding section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22726032.0A
Other languages
German (de)
English (en)
Other versions
EP4333611A1 (fr
EP4333611C0 (fr
Inventor
Felix Rademacher
Wolfgang Strautmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
B Strautmann and Sohne GmbH and Co KG
Original Assignee
B Strautmann and Sohne GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B Strautmann and Sohne GmbH and Co KG filed Critical B Strautmann and Sohne GmbH and Co KG
Publication of EP4333611A1 publication Critical patent/EP4333611A1/fr
Application granted granted Critical
Publication of EP4333611B1 publication Critical patent/EP4333611B1/fr
Publication of EP4333611C0 publication Critical patent/EP4333611C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K5/00—Feeding devices for stock or game ; Feeding wagons; Feeding stacks
    • A01K5/001—Fodder distributors with mixer or shredder
    • A01K5/002—Fodder distributors with mixer or shredder with mixing or shredding element rotating on horizontal axis
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K5/00—Feeding devices for stock or game ; Feeding wagons; Feeding stacks
    • A01K5/001—Fodder distributors with mixer or shredder
    • A01K5/004—Fodder distributors with mixer or shredder with mixing or shredding element rotating on vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
    • B01F27/922—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with two or more helices, e.g. with intermeshing helices

Definitions

  • Such mixing devices are known in a variety of designs, including stationary systems, towed feed mixers, and self-propelled feed mixers.
  • Feed mixers are used particularly on dairy farms for mixing and distributing silage and other feed.
  • the feed components are drawn from a storage area or reservoir either by a feed extraction device integrated into the mixer or by an external filling device and placed into the mixing container.
  • the material in the container is mixed into a homogeneous ration by one or more horizontally or vertically arranged augers and then discharged via a discharge device.
  • the mixing screws arranged in the mixing container can be positioned horizontally or vertically.
  • Horizontal mixers with one or more horizontally arranged mixing screws and vertical mixers with one or more vertically arranged mixing screws are known, as are so-called paddle or reel mixers.
  • An agricultural trailer is known that can be used both as a feed mixer wagon and as a spreader for fertilizer application.
  • the trailer has two mixing augers 3 located in the base, which feed the material loaded into the trailer to an agitator located at the front of the trailer.
  • the agitator comprises two rotors 4, which rotate on one side about themselves and on the other side about a central axis located between the two rotors 4.
  • the rotors 4 form a conveying system that directs the material fed to the rotors 4 by the mixing augers 3 either to a return auger 14 or to a discharge opening 10.
  • the return auger 14 conveys the mixed material back to the rear of the trailer, where it can be picked up again by the mixing augers 3 and conveyed forward towards the agitator. If a further mixing cycle is not required, the material is conveyed out of the trailer through the discharge opening 10.
  • a device for mixing liquids and slurries comprises a substantially funnel-shaped housing with a mixing element arranged therein.
  • the mixing element can include several inert mixing elements which mix the liquids or slurries introduced into the housing in the manner of a whisk.
  • This device is unsuitable for mixing solid substances, in particular for mixing structural feed, which consists, for example, essentially of straw, grass, or corn components.
  • a feed mixer wagon that includes two vertical mixing augers that can be driven independently of each other.
  • a mixer wagon with a vertical mixing screw which is equipped with a magnet for selecting metal parts contained in the feed.
  • the magnet is arranged in a recess of the screw thread.
  • the mixing screw has a section located upstream of the magnet and another section downstream of the magnet. While the mixing screw is thus divided into two sections, these two sections are not independent. from each other, but together with the magnet they form a unified mixing device or a mixing screw with an integrated magnet.
  • a feed mixer wagon with a multi-stage mixing auger is known.
  • the central auger tube consists of a lower part with a relatively large diameter and an upper part with a relatively small diameter.
  • the auger includes a shaft that is rotatable around a vertical axis, causing the auger to rotate during operation.
  • the known systems require a relatively long mixing time.
  • a long mixing time incurs costs and can damage the feed structure.
  • the object of the invention is to eliminate the described disadvantages, to make mixing more efficient, and at the same time to protect the structure of the feed.
  • the screw flight is generally attached to a housing or a central tube.
  • the housing or the central tube is set in rotation, and the mixing screw rotates uniformly around its axis over its entire range of motion.
  • At least one mixing screw is divided into at least two screw winding sections and comprises a drive device. with a first individual drive for the first screw flight section and a second individual drive for the second screw flight section, or a drive gearbox in which the drive elements for both screw flight sections rotate around the same geometric axis.
  • a drive device with a first individual drive for the first screw flight section and a second individual drive for the second screw flight section, or a drive gearbox in which the drive elements for both screw flight sections rotate around the same geometric axis.
  • the lower screw flight section can be driven at a lower speed and the upper screw flight section at a higher speed.
  • the overall power requirement and mixing intensity can thus be optimized. Since the power requirement and mixing intensity of the mixing screw depend, among other things, on its rotational speed, a lower speed can be preselected in the lower section of the aforementioned vertical screw compared to the upper section, in order to specifically reduce the power requirement in this area. A higher speed can be selected in the upper section to specifically increase the mixing intensity there.
  • the division of the mixing screw into individually driveable screw winding sections in vertical mixing screws allows the mixing screw as a whole to be adapted to the respective needs and operating conditions.
  • first worm gear section and the second worm gear section can be driven in the same direction, either clockwise or counterclockwise.
  • the function and operation of a vertical screw known from the prior art can be realized.
  • This is achieved by positioning the two screw flight sections in a way that corresponds to the position of a single-piece, prior-art mixing screw.
  • the upper end of the first (lower) screw flight section is positioned adjacent to the lower end of the second (upper) screw flight section. This results in a low-resistance transition from one screw flight section to the other.
  • both screw flight sections are In this position, driven at the same rotational speed, the material to be mixed is conveyed from bottom to top through the adjacent screw flight sections, analogous to a state-of-the-art mixing screw with a continuous screw flight.
  • the mixing screw according to the invention makes it possible to drive the two screw flight sections in the same direction but at different rotational speeds. This allows the mixing effect and the power requirement to be varied according to the specific requirements.
  • a counter-rotating drive can also be used. With such a drive, one screw section rotates clockwise and the other counter-clockwise.
  • a mixing device with counter-rotating screw sections has a particularly intensive mixing effect and is therefore especially well-suited for applications where a short mixing time is required. It is also important to note that, because the mixing rotation is counter-clockwise, very intensive (almost forced) mixing can be expected, particularly in the "collision zone" of the material being mixed.
  • the rotational speed of the first and/or the second screw flight section can be adjustable. This adjustment can be achieved, for example, by means of an additional, preferably continuously variable, gearbox.
  • the speed setting allows for adjustment of the rotational speed during a mixing process. For instance, in the initial phase of a mixing process, when the material is still largely uncut, a lower rotational speed can be preselected for one or both screw flight sections to reduce the power requirement. With the material already cut and/or during the application of the mixture, a higher or increasing rotational speed can be selected to accelerate the mixing or application process.
  • variable speed can also be used to adapt the mixing process to variable boundary conditions.
  • variable boundary conditions could include, for example, the instantaneous weight of the material being mixed, the instantaneous power requirement, or the instantaneous fill level of the mixing container.
  • These instantaneous boundary conditions can be measured using suitable sensors.
  • the weight of the material being mixed in the mixing container can be measured with known weighing sensors, which The power requirements of the drive components can be determined by measuring the torque in the drive train or the fill level of the mixing container using optical sensors (camera, light barrier). Based on the measured sensor data, the rotational speed of one or both screw flight sections can then be adjusted as needed.
  • the drive unit and its individual drives are both well protected against damage and housed in a space-saving manner.
  • the drive device can thus preferably be housed entirely or partially within the aforementioned frustoconical housing.
  • the drive mechanism of the mixing device preferably comprises a planetary gear set.
  • Planetary gear sets also called epicyclic gear sets, are gear or friction gear sets that, in addition to shafts fixed to the frame, also have axles that rotate on circular paths within the frame. Accordingly, a distinction is made between the central or sun gears mounted on the fixed axles and the epicyclic or planet gears mounted on the rotating axles.
  • the gears rotating on the rotating axles orbit a central gear, similar to how planets orbit the sun.
  • the carrier that supports the rotating axles itself rotates around a fixed axle.
  • the planetary gear comprises a carrier, a ring gear, and a sun gear, wherein either the carrier, the ring gear, or the sun gear is fixed, and the two non-fixed units each provide an individual drive for the first and second worm gear sections.
  • the screw flight sections are separated from each other by a parting plane, with the first screw flight section being arranged on one side of the parting plane and the second screw flight section on the other side of the parting plane. This prevents collisions between the screw flight sections even if the two screw flight sections are driven at different rotational speeds or different speeds.
  • the separating plane located between the screw flight sections is arranged at a 90° angle to the axis of rotation of the mixing screw. This results in a simple design of the screw flight sections and particularly cost-effective manufacturing.
  • the separation at a 90° angle to the axis of rotation is easy to set and readjust due to the precise adjustment required along the entire length of the meeting area.
  • an alternative design allows for the separation plane to be inclined instead of being angled at 90° to the axis of rotation.
  • inclined screw flight segments relative to the axis of rotation enhance the concentric conveying effect. With inwardly inclined screw flight segments in a vertical screw conveyor, less material falls off the mixing screw when the drum rotates.
  • the individual drives of the screw flight sections can be mounted together on one side of the parting line. This has the advantage of creating corresponding free spaces on the other side of the parting line. In the case of a vertical screw, this results in... This creates a freely accessible space above the mixing screw and allows for easy filling of the mixing chamber from above.
  • the first and/or the second screw flight section has an end section extending from the second side to the parting line.
  • the end section may have a cutting edge or a non-cutting area with blunt elements. These blunt elements can form a transition zone, which may be configured as line contact (parallel) or point contact (V-shaped).
  • a particularly suitable application would be, for example, the preparation of free-flowing mixed rations where no cutting tools are required.
  • a cutting edge can be provided on at least one screw flight section to cut the mixture.
  • a cutting edge can be provided on at least one screw flight section to cut the mixture.
  • not only one screw flight section has a cutting edge, but both screw flight sections have a cutting edge.
  • the two cutting edges form counter-edges against each other, by means of which the mixture can be cut with minimal resistance.
  • the cutting edges can be arranged so that they contact each other at the moment of contact when the worm gear sections rotate at different speeds.
  • the contact can be linear or non-linear, for example, wave-like. A non-linear contact requires less force and thus reduces the drive requirement.
  • the cutting edges can be adjustable in height and/or orientation.
  • a screw connection can be provided, for example, with elongated holes for the screws.
  • the cutting edges form a V-shaped formation at the moment they meet.
  • the material located between the cutting edges is thus separated by a shear cut. This reduces power peaks. This avoids damage, resulting in a smooth cut along the cutting edges that protects the internal structure of the mixture. Put simply, the mixture is cut by a pulling, scissor-like motion without being torn or crushed.
  • One or both cutting edges can be linear. If both cutting edges are linear, the cutting angle between them is constant along their entire length. With linear cutting edges on both sides, both the cutting angle and the cutting force remain constant.
  • a flywheel can be provided.
  • the reaction force can be better/more compactly balanced.
  • one or both cutting edges can have a curved, saber-like contour.
  • This saber-like contour enhances the pulling effect of the cutting edge between the cutting and counter-cutting edges.
  • a saber-shaped cutting edge also has the advantage of distributing the reaction force over a larger area (angle of rotation) and thus more effectively across the mixing auger. This results in a more uniform torque and reduces wear on the drive train.
  • a curved cutting edge is generally longer than a straight cutting edge, so that by using a longer cutting edge the cutting work can be better distributed over the entire cutting edge.
  • the saber-shaped transition at the cutting edge results in only point contact in the overlap area (starting at the bottom/inside, ending at the top/outside). Blockages caused by clogging material are reduced because the material flow can be divided. This also reduces the risk of the mixture becoming compacted and/or mushy. This is particularly important when the mixture is feed for cattle or ruminants. Maintaining the feed structure promotes the metabolism and health of these animals.
  • an extension that breaks through the parting line can be connected to at least one of the screw flight sections.
  • the overlap section is thus a space in the axial direction of the screw, in which both screw flight sections are active.
  • the end of one screw flight section is active in an inner region (radially speaking) and the end of the other screw flight section is active in an outer region (radially speaking).
  • the extension that breaks through the dividing plane between the screw flight sections then winds smoothly, or in a corkscrew-like fashion, around an inner region of the other screw flight section.
  • the aforementioned extension of one screw winding section does not radially extend beyond the other screw winding section, but is guided through a corresponding recess in the other screw winding section during the rotational movement in order to avoid a collision in this way.
  • the overlapping area of the two screw flight sections results in an intensified mixing effect. This is generally the case, in particular, when the lower screw flight section with the larger effective diameter, i.e., the lower outer screw part, has a (slight) pitch pointing inwards towards the central axis of rotation of the screw, and the screw flight section of the inner screw part has a (even slightly) outwards pitch.
  • one or more cutting tools can be attached to one or both sections of the screw flight.
  • These cutting tools for example, cutting blades, can operate as free-cutting tools.
  • the cutting tools work in conjunction with counter blades attached to the opposite screw flight section. As the screw flight sections rotate, the cutting tools are guided past the counter blades. This results in a shearing cut that severs the material located between the cutting tool and the counter blade.
  • Figure 1 shows a mixing device 100 in the form of a feed mixer wagon with a mixing container 10 and a mixing element 13 arranged therein in the form of two vertical mixing augers 15.
  • the feed mixer wagon has a chassis 20 and can be coupled to a towing vehicle, for example a tractor (not shown), by means of a hitch 39.
  • the mixing container 10 is open at the top, so that feed components to be mixed can be added to the mixing container 10 from above through a filling opening 11 formed therein.
  • the feed components introduced into the mixing container 10 are mixed by the mixing augers 15 to form a homogeneous feed mixture and can then be dispensed through a discharge opening 12.
  • the wall of the mixing container 10 is shown interrupted, so that of the two mixing augers 15 configured identically in the illustrated embodiment, the rear mixing auger 15, viewed in the direction of travel of the feed mixer wagon, can be clearly seen.
  • Both mixing screws 15 have a screw flight 16 with a lower screw flight section S1 and an upper screw flight section S2 arranged in the opposite direction.
  • the two screw flight sections S1 and S2 can be driven independently of each other by means of a drive device 17 with two individual drives 18 and 19.
  • This screw design corresponds to that described in the Figures 4 to 6 the structure shown and is related to the explanation of the Figures 4 to 6 described in more detail.
  • a scraping arm 37 can be installed in the lower area of the mixing screw 15 (see below).
  • Fig. 3 is intended to accelerate the emptying of residual feed during dispensing through the dispensing opening 12.
  • FIG. 2 Figure 1 shows a mixing device 100' in the form of a feed mixer wagon with a mixing container 10 and a mixing element 13 arranged therein in the form of a horizontal mixing screw 15.
  • the feed mixer wagon is filled either by means of a feed removal device 36 or through a removal opening 11 provided on the top of the mixing container 10'.
  • the mixing screw 15 comprises a front screw tube 40 with a screw flight S1 arranged thereon and a rear screw tube 41 with a screw flight S2 arranged thereon.
  • FIG. 3, 4 and 5 Figure 1 shows a vertical screw conveyor 15 in a first embodiment with a co-rotating drive and a linear transition between the screw flight sections S1 and S2.
  • the lower screw flight section S1 like the upper screw flight section S2, rotates in a clockwise direction R1.
  • Both screw flight sections S1 and S2 convey the mixture upwards when rotating in the direction R1.
  • the lower worm gear S1 comprises an end section 26 on its upper side with a linear cutting edge 27 in the illustrated embodiment.
  • the upper worm gear S2 comprises an end section 28 on its lower side with a linear cutting edge 29 in the illustrated embodiment.
  • the cutting edges 27 and 29 are adjustable relative to each other in the illustrated embodiment. This allows the cutting gap between the cutting edges and also the alignment of the cutting edges to be adjusted. Adjust. In the illustrated embodiment, the cutting edges 27 and 29 are adjusted relative to each other such that a V-shaped formation 30 is formed when the cutting edges 27 and 29 overlap. Material located between the cutting edges is thus cut with minimal resistance.
  • the worm gear sections S1 and S2 are driven by a drive device 17 that partially projects into a housing 21 from below.
  • the housing 21 comprises two separate housing sections G1 and G2.
  • the worm gear section S1 is mounted on the housing section G1, which is conically shaped in the illustrated embodiment, and the worm gear section S2 is mounted on the housing section G2.
  • the drive device 17 comprises a planetary gear set 22 with a sun gear 42, planet gears 44 mounted on planet carriers 43, and a ring gear 45.
  • the worm gear sections S1 and S2 are driven in the same direction by coupling the planet carriers 43 to the lower housing section G1 and the sun gear 42 to the upper housing section G2.
  • the rotational speeds n1 and n2 can be predefined by the design of the planetary gear.
  • the planetary gear 22 includes an additional ring gear 46. This results in a superposition function in which the ring gear 46 of the first planetary stage does not form a fixed unit with the main body, but is meshed with a correction worm shaft or via external teeth. By rotating this worm or via a pinion drive (for example, by means of a hydraulic motor), the ring gear of the planetary gear rotates and the output speed changes.
  • Superposition gearboxes are the ideal solution for synchronizing the processing phases when mixing animal feed. In principle, it would also be possible to provide a further superposition function at the second planetary stage. In such an embodiment, the rotational speeds n1 and n2 can be adjusted independently of each other.
  • FIG. 6 shows a vertical screw conveyor 15 in a second embodiment with a counter-rotating drive and a linear transition between the screw flight sections S1 and S2.
  • the lower screw flight section S1 rotates in the direction of rotation R1, while the upper screw flight section S2 rotates counterclockwise in the direction of rotation R2.
  • the screw flight sections S1 and S2 are configured such that they convey the mixture upwards despite the different directions of rotation R1 and R2.
  • Analogous to the first embodiment according to the Figures 3 to 5 also includes the second embodiment according to the Figures 6 to 8 A drive device 17 with a planetary gear 22.
  • the second embodiment features a counter-rotating drive of the worm gear sections S1 and S2.
  • the lower housing section G1 – and thus also the drive of the worm gear section S1 – is driven via the ring gear 45.
  • the upper housing section G2 – and thus also the drive of the worm gear section S2 – is driven, as in the first embodiment, via the sun gear 42.
  • the rotational speeds n1 and n2 are variable and can be implemented, for example, in the manner already described above.
  • FIG. 9 and 10 Figure 1 shows a vertical mixing screw 15 in a third embodiment with a co-rotating drive.
  • the end sections 26 and 28 of the screw flight sections S1 and S2 each have a saber-shaped curved contour 31.
  • the outer region of the screw flight section S1 is coreless and projects a short distance beyond the parting line 23 into the region of the second side 25. This results in an overlap between the screw flight regions S1 and S2, the effect of which is described in the section on the Figures 11 to 13 is explained in more detail.
  • the parting plane 23 could also be arranged at an angle and oriented to the alignment of the saber-shaped curved contour 31.
  • the worm gear section S1 would lie entirely on the first side 24 of the parting plane 23, and the worm gear section S2 entirely on the second side 25.
  • Figures 11 to 13 Figure 15 shows a vertical mixing screw in a fourth embodiment with a counter-rotating drive.
  • the screw flight section S1 breaks through the parting plane 23 and projects with an extension 32 into the area of the second side 25.
  • the extension 32 is coreless and projects laterally beyond worm gear section S2. This extension 32 thus creates an overlap zone 33 in the vertical direction.
  • worm gear section S2 acts in an inner area located close to the center of the axis of rotation 14, while the extension 32 of worm gear section S1 acts in an outer area located farther from the center of the axis of rotation 14.
  • an extension provided on the worm gear section S2 it would also be possible, in principle, for an extension provided on the worm gear section S2 to project into an area on the first side 24 of the parting plane 23 or for a mutual overlap to occur.
  • the coreless extensions must be designed in such a way that collisions are prevented when the worm gear sections S1 and S2 rotate at different speeds n1 and n2.
  • the overlap of the screw thread sections S1 and S2 results in a particularly intensive and rapid mixing of the feed components.
  • FIG. 14 to 16 Figure 1 shows a vertical mixing screw 15 in a fifth embodiment.
  • This fifth embodiment has a counter-rotating drive and additional cutting tools 34 in the form of cutting blades.
  • five cutting blades are mounted vertically on the screw flight section S1 in the region of the end section 26.
  • the cutting tools 34 work together with counter blades 35, which are formed by slots 38 that are provided in the end section 28 of the screw flight section S2.
  • the additional cutting tools 34 and counter blades 35 cut up feed located in the transition area between the screw flight sections S1 and S2, thus helping to reduce the risk of mushy feed and to maintain the structure of the feed. Furthermore, they reduce the risk of feed becoming trapped between the screw flight sections and the unacceptably high load peaks that occur when the end sections 26 and 28 overlap.
  • a mixing element 13 comprises at least two worm gear sections S1 and S2, each of which can be driven individually.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Birds (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (15)

  1. Dispositif de mélange (100), en particulier mélangeur de nourriture, comprenant
    - un récipient mélangeur (10) avec une ouverture de remplissage (11) et une ouverture de sortie (12)
    - au moins un organe de mélange (13) disposé dans le récipient mélangeur (10) et pouvant tourner autour d'un axe de rotation vertical (14), tel qu'une vis mélangeuse (15),
    - un dispositif de propulsion (17) pour entraîner l'organe de mélange (13)
    caractérisé en ce que au moins un organe de mélange (13)
    - une vis sans fin (16) divisée une ou plusieurs fois avec au moins deux sections de vis sans fin (S1, S2) et
    - le dispositif de propulsion (17) comprend un premier entraînement individuel (18) pour la première section de vis sans fin (S1) et un deuxième entraînement individuel (19) pour la deuxième section de vis sans fin (S2) ou un mécanisme d'entraînement dans lequel les éléments d'entraînement pour les deux sections de vis sans fin (S1, S2) tournent autour du même axe géométrique,
    de sorte que la première section de vis sans fin (S1) peut être entraînée à une première vitesse de rotation (n1) et la deuxième section de vis sans fin (S2) à une deuxième vitesse de rotation (n2) de manière synchrone ou asynchrone, indépendamment de l'autre section de vis sans fin (S1, S2).
  2. Dispositif de mélange (100) selon la revendication 1, caractérisé en ce que la première section de vis sans fin (S1) et la deuxième section de vis sans fin (S2) peuvent être entraînées dans le même sens de rotation (R1) ou dans des sens de rotation opposés (R2).
  3. Dispositif de mélange (100) selon la revendication 1, caractérisé en ce que :
    - la première section de vis sans fin (S1) dans le sens de rotation (R1) et la deuxième section de vis sans fin (S2) dans le sens de rotation (R2)
    - ou inversement, la première section de vis sans fin (S1) dans le sens de rotation (R2) et la deuxième section de vis sans fin (S2) dans le sens de rotation (R1)
    peuvent être entraînées en sens inverse.
  4. Dispositif de mélange (100) selon l'une des revendications 1 à 3, caractérisé en ce que la vitesse de rotation (n1) de la première section de vis sans fin (S1) et/ou la vitesse de rotation (n2) de la deuxième section de vis sans fin (S2) sont réglables.
  5. Dispositif de mélange (100) selon l'une des revendications 1 à 4, caractérisé en ce que l'organe de mélange (13)
    - comprend un boîtier tubulaire (21) avec une première partie de boîtier (G1) et une deuxième partie de boîtier (G2),
    - la première section de vis sans fin (S1) est montée sur la première section de boîtier (G1) et la deuxième section de vis sans fin (S2) est montée sur la deuxième section de boîtier (G2) et
    - le dispositif de propulsion (17) est disposé au moins en partie à l'intérieur du boîtier (21).
  6. Dispositif de mélange (100) selon l'une des revendications 1 à 5, caractérisé en ce que le dispositif de propulsion (17) comprend au moins un train épicycloïdal (22).
  7. Dispositif de mélange (100) selon la revendication 6, caractérisé en ce que le train épicycloïdal (22) comprend une entretoise, une couronne dentée et un pignon solaire, et soit l'entretoise, soit la couronne dentée, soit le pignon solaire est fixe, et les deux unités non fixes forment chacune un entraînement individuel pour la première et la deuxième section de vis sans fin (S1, S2).
  8. Dispositif de mélange (100) selon l'une des revendications 1 à 7, caractérisé en ce que les sections de vis sans fin (S1, S2) sont séparées l'une de l'autre par un plan de séparation (23) et la première section de vis sans fin (S1) est disposée sur un premier côté (24) du plan de séparation (23) et la deuxième section de vis sans fin (S2) est disposée sur le deuxième côté (25) du plan de séparation (23).
  9. Dispositif de mélange (100) selon la revendication 8, caractérisé en ce que le plan de séparation (23) est disposé à un angle de 90° par rapport à l'axe de rotation (14) de l'organe de mélange (13).
  10. Dispositif de mélange (100) selon l'une des revendications 8 ou 9, caractérisé en ce que l'entraînement individuel (18) de la première section de vis sans fin (S1) est disposé sur le premier côté (24) du plan de séparation (23) et l'entraînement individuel (19) de la deuxième section de vis sans fin (S2) est disposé sur le deuxième côté (25) du plan de séparation (23).
  11. Dispositif de mélange (100) selon l'une des revendications 8 à 10, caractérisé en ce que
    - la première section de vis sans fin (S1) présente une section finale (26) s'étendant depuis le premier côté (24) jusqu'au plan de séparation (23) avec un tranchant (27) et/ou
    - la deuxième section de vis sans fin (S2) présente une section finale (28) s'étendant depuis le deuxième côté (25) jusqu'au plan de séparation (23) avec un tranchant (29).
  12. Dispositif de mélange (100) selon la revendication 11, caractérisé en ce que les tranchants (27, 29) forment, lors de la rotation des sections de vis sans fin (S1, S2) à des vitesses de rotation différentes (n1, n2) lors de leur rencontre, elles forment une formation en V (30), de sorte que, lors de la poursuite du mouvement de rotation, le matériau situé entre les tranchants (27, 29) est séparé par une coupe de cisaillement.
  13. Dispositif de mélange (100) selon la revendication 11 ou 12, caractérisé en ce que l'un ou les deux tranchants (27, 29) sont linéaires ou présentent un contour incurvé en forme de sabre (31).
  14. Dispositif de mélange (100) selon l'une des revendications 8 à 13, caractérisé en ce que sur au moins l'une des sections de vis sans fin (S1, S2) est raccordée une prolongation (32) qui traverse le plan de séparation (23), de sorte qu'une zone de chevauchement (33) est formée entre les sections de vis sans fin (S1, S2).
  15. Dispositif de mélange (100) selon l'une des revendications 1 à 14, caractérisé en ce que des outils de coupe (34) sont montés sur une section de vis sans fin (S1) ou (S2) et des contre-couteaux (35) sont montés sur l'autre section de vis sans fin (S1) ou (S2) qui, lors de la rotation des sections de vis sans fin (S1, S2) à des vitesses de rotation différentes (n1, n2), peuvent passer les uns devant les autres en cisaillement, de sorte que le matériau se trouvant entre l'outil de coupe (34) et le contre-couteau (35) est coupé.
EP22726032.0A 2021-05-03 2022-04-27 Dispositif de mélange pourvu d'une vis mélangeuse divisée et des sections de spires pouvant être entraînées indépendamment les unes des autres Active EP4333611B1 (fr)

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DE102021111338.5A DE102021111338B4 (de) 2021-05-03 2021-05-03 Mischvorrichtung mit geteilter Mischschnecke und unabhängig voneinander antreibbaren Schneckenwindungsabschnitten
PCT/EP2022/061190 WO2022233675A1 (fr) 2021-05-03 2022-04-27 Dispositif de mélange pourvu d'une vis mélangeuse divisée et des sections de spires pouvant être entraînées indépendamment les unes des autres

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US3352543A (en) * 1966-06-10 1967-11-14 Atlantic Res Corp Vertical mixer
FR2335370A1 (fr) * 1975-12-15 1977-07-15 Lucas Sa G Benne roulante portee ou semi-portee pour distribution d'aliments de betail ou epandage de fumier
DE20103118U1 (de) 2001-02-22 2001-05-23 Fa. Gerhard Eckart Maschinenbau, 84032 Altdorf Vorrichtung zum Mischen und Ausbringen von Schüttgut
DE10345322B4 (de) * 2003-09-30 2006-05-11 Deere & Company, Moline Futtermischwagen
US20110121114A1 (en) * 2009-11-24 2011-05-26 Roto-Mix, Llc Material mixer with multi-flighted auger
DE202010001357U1 (de) 2010-01-25 2011-06-09 Rögelberg Holding GmbH & Co. KG, 49716 Futtermischwagengetriebeanordnung und Futtermischwagen
DE202015001543U1 (de) * 2015-02-27 2016-01-25 Mayer Verwaltungs Gmbh & Co. Kg Vertikalmischschnecke mit Magnet für Futtermischwagen
ITUB20151771A1 (it) 2015-07-01 2017-01-01 Faresin Ind S P A Carro miscelatore perfezionato per misture alimentari per animali

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DE102021111338B4 (de) 2023-08-17
WO2022233675A1 (fr) 2022-11-10
DE102021111338A1 (de) 2022-11-03
EP4333611C0 (fr) 2025-11-19

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